1999/11/02 by T. A. Shutenko, I. L. Aleǐner, I. L. Aleiner +1 · 11 citations
Physics and Astronomy · #Quantum and electron transport phenomena #Quantum chaos and dynamical systems #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.61.10366
11 pages, 5 figures included
arxiv created 1999/11/02 · openalex publication_date 2000/04/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider the adiabatic charge transport through zero-dimensional mesoscopic sample (quantum dot) caused by two periodically changing external perturbations. Both the magnitude and the sign of the transmitted charge are extremely sensitive to the configuration of the dot and to the magnetic field. We find the correlation function characterizing the random value of this pumped charge for arbitrary strength of the perturbation. In contrast to previous theoretical and experimental claims, the charge is found not to have any symmetry with respect to the inversion of magnetic field. At strong pumping perturbation, the variance of the charge 〈Q2〉 is found to be proportional to the length of the contour in parametric space.